/Engine/Source/Runtime/Experimental/Chaos/Public/PhysicsProxy/SingleParticlePhysicsProxy.h
Returns the underlying game thread particle. Note this should only be needed for internal book keeping type tasks. API may change, use GetGameThreadAPI instead.
[PARTICLE_TYPE](API\Runtime\Chaos\PhysicsProxy\FSingleParticlePhysicsProxy\PARTICLE_TYPE) * GetParticle_LowLevel()